<!DOCTYPE html>
<html>

<head>
  <meta charset="utf-8" />
  <title>example</title>
</head>

<body>
  <h1>Hello</h1>
  <script async type="text/javascript" src="/script2.js"></script>
  <script async type="text/javascript" src="/script1.js"></script>
  <!-- <script async type="text/javascript" src="/script3.js"></script> -->
  <p>after script tags</p>
  <script type="text/javascript">
    window.addEventListener('DOMContentLoaded', function () {
      console.log('DOMContentLoaded')
    })
  </script>
</body>

</html>
